While the Sierra Forest Xeon processor with pure E-Core has not yet been announced, news of its successor has already arrived, with Intel's second-generation E-Core Xeon codenamed Clearwater Forest, expected to come with 288 cores and an updated core architecture.
The news comes from @bionic Squash, but since the first generation of E-Core Xeon Sierra Forest has not yet been released and is expected to be released in mid-2024, it is estimated that Clearwater Forest, which is scheduled to be launched in 2025, is still uncertain. ClearWater Forest will use the *** E-Core architecture, with GraceMonth currently used on Alder Lake and Raptor Lake being the first generation of E-Core, while the upcoming Meteor Lake will use the second generation of CrestMonth, and the third generation of Sierra Glen will be released with Sierra Forest.
At the moment, Sierra Glen's architecture is very similar to Crestmont, and Crestmont itself is very similar to Gracemont, with only minor changes, and it is said that the E-Core used by Clearwater Forest is a modified version of Crestmont, not the Skymont architecture, and will be used as an e-core for Lunar Lake and Panther Lake in 2025.
The ClearWater Forest Xeon processor has up to 288 cores, which is the same as the first-generation E-Core Xeon Sierra Forest, with the difference that the ClearWater Forest-SP chip will offer more cores than Sierra Forest-SP's 144 cores, while the ClearWater Forest-AP chip offers the same core as Sierra With the same 288 cores as Forest-AP, the IPC is also said to have received a considerable boost, and a major improvement for Clearwater Forest is that it will have a larger L3 cache, a change that will also be seen on the upcoming release of the 5th Gen Xeon Emerald Rapids.